• Session

  
  Input & Ouput

• Question ID

  
  1111110035 : Sum of the series

• Problem Description

  
  Swetha has a doubt in Mathematics. She has to find the sum value for the following series. Your task is to write a code to find the sum of the following series 1+(1+2)+ (1+2+3)+ (1+2+3+4)++n
  
  Input:
  Input should contain the value of the limit n
  
  Output:
  It should print the Sum of series upto n limit
  

• Logic Test Case 1

  
  Input (stdin)

  4
  
  

  Expected Output

  20

• Logic Test Case 2

  
  Input (stdin)

  6
  
  

  Expected Output

  56

#include<stdio.h>

int main(){

int n,sum,sum1=0,i,j;

//printf("Please enter an integer n=");

scanf("%d",&n);

for(i=1;i<=n;i++){

sum=0;

for(j=1;j<=i;j++)

sum=sum+j;

sum1=sum1+sum;

}

printf("%d\n",sum1);

return 0;

}